96 



aperturd violaced ; labio externo incrassato, intiis subsulcato ,- 



long. 0-65, lat. OS poli. 

 Hab. sub lapidibus ad Paytam, Peruvise. 



The anterior part of the lašt volution, towards the lip, is smooth. 

 and free from ribs. — W. L. P. 



Nassa pallida. Nassa testd ovato-conicd, sordide albd, canali 

 fusco maculatd; anfractibus 8 — 9, superne subangulatis, longitudi- 

 naliter obliąuė costatis, spiraliter sulcatis et rugoso-striatis ; labio 

 externo intiis striato ; columelld arcuatd, callosd : long. 1'2, lat. 

 0-65 poli. 



Hab. ad Panamam. 



The ribs are not continued over the anterior part of the lašt volu- 

 tion towards the lip. 



Dredged from sandy mud at a depth of six fathoms. — W. L. P. 



Nassa scabriūscūla. Nassa testd ovato-conicd, acuminatd, fuscd 

 luteo fasciatd, longitudinaliter plicatd, striis elivatis asperis spi- 

 raliter cancellatd ; aperturd rotundatd ; labio externo albo, antice 

 fusco maculato, estUs marginato, intiis valdi sulcato : long. 0"47, 

 lat. 0-27 poli. 



Hab. ad oras Americae Centralis. 



Dredged in sandy mud at a depth of twelve fathoms in the Bay of 

 Montija.— W. L. P. 



Nassa complanata. Nassa testd ovatd, complanatd, olivacedfasciis 

 luteis cinctd ; anfractibus superioribus utrinque granosis, ultimo 

 varicibus lateralibus et plicis graniferis dorso evanescentibus ; 

 aperturd ovali; labio externo marginato, intiis sulcato : long. 0'35, 

 lat. 0-22 poli. 



Hab. ad oras Colombiae Occidentalis. 



Found at Atacamas, under stones. — "VV. L. P. 



Genus Puhpura. 



Purpura TiENiATA. Purp. testd obovato-oblongd, transversitn te- 

 nuissimi striatd, rufo-castaned fasciis fulvo-luteis cinctd; spird 

 brevissimd ; anfractu ultimo permagno ; aperturd elongatd, sub- 

 teguali, intiis lacted, peritremate castaneo lineis albidis radiato ; 

 columelld pland, pallidi castaned ; labio extemo intiis denticulato .- 

 long. 0-9, lat. 0-62 poli. 

 Hab. in Oceano Pacifico. (Maldon Island.) 



I am not aware of this interesting shell having been hitherto de- 

 scribed. It bears a considerable resemblance to the Purp. Vexillum 

 of Lamarck ; but differs from that species in having a much shorter 

 spire, in its very flat columella, and in the outer lip being more ex- 

 panded and radiated. The bands also aiFord a ready mark of distinc- 

 tion : in Purp. Vexillum they are of a reddish browTi on a lighter 

 ground ; ■vvhilst in Purp. taniata the ground colour is dark chestnut, 

 and the bands yellow. — W. L. P. 



